Finding the Fourth Proportional to 2,321.43, 3,206.28 and 1,574.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,321.43 : 3,206.28 = 1,574.07 : x
2. Step 2: Convert to fraction form
   2,321.43/3,206.28 = 1,574.07/x
3. Step 3: Cross multiply
   2,321.43x = 3,206.28 × 1,574.07
4. Step 4: Simplify right side
   2,321.43x = 5,046,909.16
5. Step 5: Solve for x
   x = 5,046,909.16/2,321.43
6. Step 6: Final answer
   x = 2,174.05